package com.liuning.security;

import com.liuning.entity.SysUser;
import com.liuning.service.SysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class UserDetailServiceImpl implements UserDetailsService {

    @Autowired
    SysUserService sysUserService;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        SysUser sysUser = sysUserService.getByUsername(username);
        if (sysUser == null) {
            throw new UsernameNotFoundException("用户名或密码不正确");
        }

        return new AccountUser(sysUser.getId(),sysUser.getUsername(),sysUser.getPassword(),getUserAuthority(sysUser.getId()));
    }

    /**
     * 根据userId获取user的权限信息（角色、菜单权限）
     * @param userId
     * @return
     */
    public List<GrantedAuthority> getUserAuthority(Long userId) {
        //角色（ROLE_admin）    菜单权限（sys:user:list）
        //ROLE_admin,sys:user:list,......
        String authority = sysUserService.getUserAuthorityInfo(userId);
        return AuthorityUtils.commaSeparatedStringToAuthorityList(authority);
    }
}
